Features:_x000D_ _x000D_ Carbon steel material has strong stability, is not easy to rust, and has a long service life. _x000D_ High accuracy for fine mechanical process of good quality. _x000D_ The model is universal, does not pick the model. _x000D_ The tool kit is made of high quality carbon steel with excellent hardness and toughness to extend its service life. _x000D_ This product is the main accessory for boring and CNC milling machines, such as coordinate boring machine, horizontal boring machine and ordinary boring machine. _x000D_ Used for machining inner hole surface, boring, boring outer ring, boring end face, boring ladder hole, boring end face, cutting hole and outer ring groove, etc. _x000D_ _x000D_ Specification:_x000D_ Material:Carbon Steel_x000D_ Boring Head:F1-12mm _x000D_ Tail Thread:1-1/2-18UNF _x000D_ MT-4 Shank Tail Thread:M16_x000D_ _x000D_ Package List:_x000D_ 1 x F1 Boring Head_x000D_ 9 x Boring Blade_x000D_ 3 x Hex Wrench